RTL8111C-VB-GR View Datasheet(PDF) - Realtek Semiconductor

Part Name

Description

MFG CO.

RTL8111C-VB-GR

INTEGRATED GIGABIT ETHERNET CONTROLLER FOR PCI EXPRESS™ APPLICATIONS

Realtek Semiconductor 

6.9.8.

Bits

31:01

00

RTL8111C

Datasheet

Vector Control for MSI-X Table Entries

Table 22. Vector Control for MSI-X Table Entries

RW

Field

Description

RW

Reserved After reset, the state of these bits must be 0. However, for potential future use,

software must preserve the value of these reserved bits when modifying the value

of other Vector Control bits. If software modifies the value of these reserved bits,

the result is undefined.

RW

Mask Bit When this bit is set, the function is prohibited from sending a message using this

MSI-X Table entry. However, any other MSI-X Table entries programmed with

the same vector will still be capable of sending an equivalent message unless they

are also masked. This bit’s state after reset is 1 (entry is masked). This bit is

read/write.

6.9.9.

Bits

63:00

Pending Bits for MSI-X PBA Entries

Table 23. Pending Bits for MSI-X PBA Entries

RW

Field

Description

RW Pending Bits For each Pending Bit that is set, the function has a pending message for the

associated MSI-X Table entry. Pending bits that have no associated MSI-X Table

entry are reserved. After reset, the state of reserved Pending bits must be 0.

Software should never write, and should only read Pending Bits. If software

writes to Pending Bits, the result is undefined.

Each Pending Bit’s state after reset is 0 (no message pending). These bits are

permitted to be read only or read/write.

6.10. Receive-Side Scaling (RSS)

The RTL8111C is compliant with the new Network Driver Interface Specification (NDIS) 6.0

Receive-Side Scaling (RSS) technology for the Microsoft Windows family of operating systems. RSS

allows packet receive-processing from a network adapter to be balanced across the number of available

computer processors, increasing performance on multi CPU platforms.

6.10.1. Receive-Side Scaling (RSS) Initialization

During RSS initialization, the Windows operating system will inform the RTL8111C to store the

following parameters: hash function, hash type, hash bits, indirection table, BaseCPUNumber, and the

secret hash key.

Hash Function

The default hash function is the Toeplitz hash function.

Integrated Gigabit Ethernet Controller for PCI Express

23

Track ID: JATR-1076-21 Rev. 1.5

Share Link: